Along with the growth of the “east west fast and slow” investment “for westward”， especially the national increase in promoting coordinated regional development efforts， China regional economic development presents the new trend，the economic development gap between four big tectonic plate presents overall expanded to narrowing trend. From the perspective of industry，service industry diffusion speed is slower than the manufacturing industry，manufacturing industry more easily from the transferred from developed regions to less developed areas. Effect on regional development of the city group is increasingly prominent，the economic growth rate of big city circle is higher than other city；at a higher stage of development of city group，economic activity began to spread from the core to the surrounding city circle，and for the lower stages of development city group， economic activity to the core city agglomeration. <<